Ira Edwards, head of design at the Finchampstead Road firm, also warns bosses not to chose dull shades for interior design.

She explained: “Reds, oranges and yellow produce a warm and active feeling, while off-white, cream and grey can be monotonous and potentially depressing if they are not broken up with additional colours.”

“A splash of colour in the workplace can really lift spirits and boost job performance at this time of year.”